newsletter-generation

newsletter-generation is a skill for Claude Code, Codex from archimedes-run/omniHarness. It costs 88 tokens per session (2,877 once invoked), scanned A, a copy of newsletter-generation, MIT.

A writing workflow for creating newsletters, email digests, weekly roundups, and industry briefings from researched and selected content.

In plain words
What is it for?
Use it to research topics, combine material from multiple sources, add commentary, and prepare Markdown content for email or web publishing.
Why use it?
It removes the need to gather information, summarise sources, and organise a readable newsletter from scratch.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to research topics, combine material from multiple sources, add commentary, and prepare Markdown content for email or web publishing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/archimedes-run/omniharness/newsletter-generation
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add archimedes-run/omniHarness --skill newsletter-generation
Clone the repo
git clone --depth 1 https://github.com/archimedes-run/omniHarness

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for newsletter-generation

README.md
[![agentmods](https://agentmods.dev/badge/skills/archimedes-run/omniharness/newsletter-generation/github.svg)](https://agentmods.dev/skills/archimedes-run/omniharness/newsletter-generation)
Your own site
<a href="https://agentmods.dev/skills/archimedes-run/omniharness/newsletter-generation"><img src="https://agentmods.dev/badge/skills/archimedes-run/omniharness/newsletter-generation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for newsletter-generation

Your own site · 80×15
<a href="https://agentmods.dev/skills/archimedes-run/omniharness/newsletter-generation"><img src="https://agentmods.dev/badge/skills/archimedes-run/omniharness/newsletter-generation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,877 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00088 $0.02877
Opus 5 $0.00044 $0.01438
Sonnet 5 $0.00018 $0.00575
Haiku 4.5 $0.00009 $0.00288

Measured 11d ago against content hash cc66adb99053, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

newsletter-generation scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to newsletter-generation — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/public/newsletter-generation/SKILL.md · 344 lines

How it starts

The opening of the file, as written. The whole thing — 344 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Newsletter Generation Skill

Overview

This skill generates professional, well-researched newsletters that combine curated content from multiple sources with original analysis and commentary. It follows modern newsletter best practices from publications like Morning Brew, The Hustle, TLDR, and Benedict Evans to produce content that is informative, engaging, and actionable.

The output is a complete, ready-to-publish newsletter in Markdown format, suitable for email distribution platforms, web publishing, or conversion to HTML.

Core Capabilities

  • Research and curate content from multiple web sources on specified topics
  • Generate topic-focused or multi-topic newsletters with consistent voice
  • Write engaging headlines, summaries, and original commentary
  • Structure content for optimal readability and scanning
  • Support multiple newsletter formats (daily digest, weekly roundup, deep-dive, industry briefing)
  • Include relevant links, sources, and attributions
  • Adapt tone and style to target audience (technical, executive, general)
  • Generate recurring newsletter series with consistent branding and structure

When to Use This Skill

Always load this skill when:

  • User asks to generate a newsletter, email digest, or content roundup
  • User requests a curated summary of news or developments on a topic
  • User wants to create a recurring newsletter format
  • User asks to compile recent developments in a field into a briefing
  • User needs a formatted email-ready content piece with multiple curated items
  • User asks for a "weekly roundup", "monthly digest", or "morning briefing"

Newsletter Workflow

Phase 1: Planning

Step 1.1: Understand Newsletter Requirements

Identify the key parameters:

Parameter Description Default
Topic(s) Primary subject area(s) to cover Required
Format Daily digest, weekly roundup, deep-dive, or industry briefing Weekly roundup
Target Audience Technical, executive, general, or niche community General
Tone Professional, conversational, witty, or analytical Conversational-professional
Length Short (5-min read), medium (10-min), long (15-min+) Medium
Sections Number and type of content sections 4-6 sections
Frequency Context One-time or part of a recurring series One-time

Read the full file on GitHub · 344 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 344 lines · 88 tokens per session scan A cc66adb99053

Subscribe to this mod's changes

newsletter-generation is a skill published in the GitHub repository archimedes-run/omniHarness (7 stars, last pushed 16d ago), licensed MIT. It adds 88 tokens to every session and 2,877 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to newsletter-generation, differing in 0 lines, and is treated as a copy.

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